| 摘要 |
<p>The device (1) has a lighting unit (51) e.g. lighting point source such as colour LED, that is lit to form a mark on a main surface (42) of a rotational plate (4). Another lighting unit (52) e.g. lighting point source, is associated to the plate to form a backlight. A base integrates the lighting units, and the plate is associated to the base. The base is provided at the distance from the plate to provide a space to house the lighting units.</p> |
